They never answer any phone calls and use a unreasonable and stupid robot to answer questions that doesn't understand anything. As a citizen I filed an application one whole year and a half ago for my parents who are by the way getting older by the day to come visit me and my daughter but not only am I not allowed to fill an inquire because supposedly my case is perfectly normal even though according to them these cases take 11.5 months max but they have zero service to assist or help in any way. This isn't even the first time this has happened as they took ten weeks to send my passport when it was supposed to arrive within 8 weeks or less.The worse customer service in the whole world even services in third world countries care better for their people than the USCIS